Musician Bruce Springsteen performs onstage during USC Shoah Foundation's 20th Anniversary Gala at the Hyatt Regency Century Plaza on May 7, 2014 in Century City, California. The Forbes World's Most Powerful Celebrity 100 list is based on earnings estimates (which carry the most weight), media mentions, social media reach, and the impact each celebrity has had on the entertainment industry and culture overall during the prior year. (Photo by Michael Buckner/Getty Images for USC Shoah Foundation)